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Question 454808: I need help solving this equation. I am not good with word problems but if you show me how to come up with a system then I could solve it.
A customer walks into an electronics store and buys five MP3 players and eight sets of headphones, paying $840. A second customer buys three MP3 players and four sets of headphones, and pays $480. How much does an MP3 player cost? How much does a set of headphones cost?
Answer by scott8148(6628)   (Show Source):
You can put this solution on YOUR website! "five MP3 players and eight sets of headphones, paying $840" ___ 5m + 8h = 840
"three MP3 players and four sets of headphones, and pays $480" ___ 3m + 4h = 480
BIG HINT: multiply 2nd equation by 2 and subtract 1st equation
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